Παραπομπή APA

Gopalan, R., & Venkappayya, D. (2006). Textbook of engineering chemistry (3rd.). Vikas publishing house.

Παραπομπή Chicago Style

Gopalan, R., και D. Venkappayya. Textbook of Engineering Chemistry. 3rd. New Delhi: Vikas publishing house, 2006.

Παραπομπή MLA

Gopalan, R., και D. Venkappayya. Textbook of Engineering Chemistry. 3rd. Vikas publishing house, 2006.